What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

What is the most punctual flight time for Chiang Mai to Ko Samui flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

How often are flights from Chiang Mai to Ko Samui delayed?

About 6% of weekly flights between Chiang Mai and Ko Samui have experienced delays in the past year, with the average delay time being 115 minutes.

Which airline has the best punctuality record on Chiang Mai to Ko Samui flights?

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 6% of flights being delayed.

How popular is this Chiang Mai to Ko Samui flight route?

Flights from Chiang Mai to Ko Samui have been viewed 8 times in the past calendar month.

How long is the flight from Chiang Mai to Ko Samui?

Bangkok Airways can get you from Chiang Mai to Ko Samui in just under 6h 05m. Your travel time can differ by up to . Chiang Mai and Ko Samui are separated by a distance of 641 mi.

Weekly flight availability from Chiang Mai to Ko Samui

The most flights from CNX to USM are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What are the cheapest flights from Chiang Mai to Ko Samui?

Looking for the cheapest flight from Chiang Mai to Ko Samui? While on average our users pay £211, our data indicates the cheapest price to be £161. The most popular route (Chiang Mai - Ko Samui), is priced around £372.

What are the most reliable airlines from Chiang Mai to Ko Samui?

No one likes to see their flight delayed. When booking a flight from Chiang Mai to Ko Samui consider choosing EVA Air (89%), Thai Airways (89%) or Etihad Airways (89%) as they are the most reliable in getting you off to your destination on time.

Can I find deals for flights from Chiang Mai to Ko Samui that include hotel bookings?

Yes. In addition to deals on Chiang Mai to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Chiang Mai to Ko Samui?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Ko Samui.

Can I find deals for business class flights from Chiang Mai to Ko Samui?

Yes. Cheapflights offers flight deals from Chiang Mai to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£116+ Cheap Flights from Chiang Mai to Ko Samui

Cheap flight deals from Chiang Mai to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

Best

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One-way

Cheapest flights from Chiang Mai to Ko Samui
Explore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Thu 12/1113:30 -

1 stop6h 55m

Mon 16/1108:50 -

Nonstop1h 50m

Deal found 10/10£159

Thu 29/1022:30 -

1 stop8h 40m

Mon 2/1108:50 -

Nonstop1h 50m

Deal found 9/10£184

Fri 13/1119:45 -

1 stop13h 35m

Wed 18/1108:50 -

Nonstop1h 50m

Deal found 10/10£188

Sat 7/1119:45 -

1 stop11h 25m

Mon 9/1108:50 -

Nonstop1h 50m

Deal found 7/10£189

Thu 15/1011:35 -

Nonstop1h 45m

Thu 22/1008:55 -

Nonstop1h 45m

Deal found 8/10£194

Thu 15/1022:20 -

1 stop8h 50m

Thu 22/1008:55 -

Nonstop1h 45m

Deal found 8/10£197

Fri 13/1122:35 -

1 stop9h 35m

Wed 18/1116:35 -

1 stop5h 00m

Deal found 10/10£203

Thu 12/1111:30 -

Nonstop1h 45m

Mon 16/1108:50 -

Nonstop1h 50m

Deal found 10/10£218

Find flight deals from Chiang Mai to Ko Samui

Round-trip from	£159
One-way from	£116
Popular in	December
Cheapest in	September
Average price	£276
Good one-way deal	£173 or less

Bangkok Airways
12/11-16/11
1 total stop
8h 45m total
Chiang Mai to Ko Samui

Search Deals

Bangkok Airways
26/10-31/12
1 total stop
11h 25m total
Chiang Mai to Ko Samui

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£43 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£9 potential savings vs. average return price).

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Average for round-trip flights in October 2026

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Price to beat on a one-way flight from Chiang Mai to Ko Samui.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sun 28/2

12:10-20:25

1 stop8h 15m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

£130

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Fri 26/2

10:10-17:00

1 stop6h 50m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

£147

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Thu 12/11

13:30-20:25

1 stop6h 55m

Ko Samui

Mon 16/11

08:50-10:40

Nonstop1h 50m

£159

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Thu 14/1

10:10-17:40

1 stop7h 30m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

£162

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Sun 6/12

10:10-20:25

1 stop10h 15m

Ko Samui

Wed 31/12

00:00-00:00

Nonstop0h 00m

£163

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Thu 29/10

22:30-07:10

1 stop8h 40m

Ko Samui

Mon 2/11

08:50-10:40

Nonstop1h 50m

£184

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Fri 13/11

22:35-08:10

1 stop9h 35m

Ko Samui

Wed 18/11

16:35-21:35

1 stop5h 00m

£203

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Wed 13/1

10:10-16:15

1 stop6h 05m

Ko Samui

Wed 27/1

08:50-10:40

Nonstop1h 50m

£253

Fastest return journey

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Thu 5/11

11:30-13:15

Nonstop1h 45m

Ko Samui

Thu 19/11

08:50-10:40

Nonstop1h 50m

£259

Chiang MaiKo Samui

CNX Chiang Mai - USM Ko Samui

CNXUSM

Chiang Mai

Thu 11/3

11:30-13:15

Nonstop1h 45m

Ko Samui

Wed 24/3

08:50-10:40

Nonstop1h 50m

£286

Flights are sorted by cheapest return flights first.

Deals found on 10/10

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from Chiang Mai to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Chiang Mai with our price prediction graph.

CNX-USM

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Ko Samui

Prices

Airlines

Delays

What is the cheapest month to book a flight from Chiang Mai to Ko Samui?

Currently, September is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of £130). Flying from Chiang Mai to Ko Samui in December is currently the most expensive (average of £438). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CNX to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Ko Samui as you normally would.

How much does it cost for a return flight from Chiang Mai to Ko Samui?

Airfare is below average for this route at the moment.

Chiang Mai to Ko Samui flights typically cost between £234 and £300 in November.
The cheapest return price found within the last 5 days was £159 on Multiple Airlines (12 Nov–16 Nov).

Related info for your journey

How popular is this Chiang Mai to Ko Samui flight route?
Flights from Chiang Mai to Ko Samui have been viewed 8 times in the past calendar month.
How long is the flight from Chiang Mai to Ko Samui?
Bangkok Airways can get you from Chiang Mai to Ko Samui in just under 6h 05m. Your travel time can differ by up to . Chiang Mai and Ko Samui are separated by a distance of 641 mi.
What are the most reliable airlines from Chiang Mai to Ko Samui?
No one likes to see their flight delayed. When booking a flight from Chiang Mai to Ko Samui consider choosing EVA Air (89%), Thai Airways (89%) or Etihad Airways (89%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Chiang Mai to Ko Samui?
Looking for the cheapest flight from Chiang Mai to Ko Samui? While on average our users pay £211, our data indicates the cheapest price to be £161. The most popular route (Chiang Mai - Ko Samui), is priced around £372.
Can I find deals for flights from Chiang Mai to Ko Samui that include hotel bookings?
Yes. In addition to deals on Chiang Mai to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chiang Mai to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Ko Samui.
Can I find deals for business class flights from Chiang Mai to Ko Samui?
Yes. Cheapflights offers flight deals from Chiang Mai to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Chiang Mai to Ko Samui?
Currently, September is the cheapest month in which you can book a flight from Chiang Mai to Ko Samui (average of £130). Flying from Chiang Mai to Ko Samui in December is currently the most expensive (average of £438). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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How does Cheapflights help users find flights from Chiang Mai to Ko Samui?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ko Samui from Chiang Mai today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Ko Samui?

Cheapflights helps you find that perfect flight to Ko Samui from Chiang Mai by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Chiang Mai to Ko Samui with no change fees?

Need flexible booking options for your flight to Ko Samui from Chiang Mai? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to Ko Samui become cheaper?

Yes, Cheapflights offers price alerts on Chiang Mai to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Chiang Mai to Ko Samui from £116

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Mai to Ko Samui

Cheapest flights from Chiang Mai to Ko SamuiExplore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Explore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Best flights from Chiang Mai to Ko SamuiDiscover carefully curated flight deals from Chiang Mai to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.

Discover carefully curated flight deals from Chiang Mai to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.

Direct flights from Chiang Mai to Ko SamuiExplore direct flight options from Chiang Mai to Ko Samui based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 October 2026.

Explore direct flight options from Chiang Mai to Ko Samui based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 October 2026.

Last-minute flights from Chiang Mai to Ko SamuiDiscover last-minute flight deals from Chiang Mai to Ko Samui. Data last updated 10 October 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Ko Samui. Data last updated 10 October 2026 and is based on user searches.

One-way flights from Chiang Mai to Ko SamuiSearch for one-way flight options from Chiang Mai to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.

Search for one-way flight options from Chiang Mai to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.

Find flight deals from Chiang Mai to Ko Samui

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Use the filters below to find and compare flights from Chiang Mai to Ko Samui that are best for you.

Best time to book a flight from Chiang Mai to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Chiang Mai with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Chiang Mai to Ko Samui?

What is the cheapest time of day to fly from CNX to USM?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Mai to Ko Samui as you normally would.

How much does it cost for a return flight from Chiang Mai to Ko Samui?

Airfare is below average for this route at the moment.

Chiang Mai to Ko Samui flights typically cost between £234 and £300 in November.The cheapest return price found within the last 5 days was £159 on Multiple Airlines (12 Nov–16 Nov).

Weekly flight availability from Chiang Mai to Ko Samui

The most flights from CNX to USM are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

How often are flights from Chiang Mai to Ko Samui delayed?

About 6% of weekly flights between Chiang Mai and Ko Samui have experienced delays in the past year, with the average delay time being 115 minutes.

What is the most punctual flight time for Chiang Mai to Ko Samui flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Chiang Mai to Ko Samui flights?

Over the past year, Bangkok Airways have had the lowest number of delays on this route, with just 6% of flights being delayed.

Related info for your journey

How popular is this Chiang Mai to Ko Samui flight route?

How long is the flight from Chiang Mai to Ko Samui?

What are the most reliable airlines from Chiang Mai to Ko Samui?

What are the cheapest flights from Chiang Mai to Ko Samui?

Can I find deals for flights from Chiang Mai to Ko Samui that include hotel bookings?

How can I find direct flights from Chiang Mai to Ko Samui?

Can I find deals for business class flights from Chiang Mai to Ko Samui?

What is the cheapest month to book a flight from Chiang Mai to Ko Samui?

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Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.

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Can Cheapflights notify me if prices for flights from Chiang Mai to Ko Samui become cheaper?

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Cheapest flights from Chiang Mai to Ko Samui
Explore the most affordable flight options available from Chiang Mai to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Best flights from Chiang Mai to Ko Samui
Discover carefully curated flight deals from Chiang Mai to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.

Direct flights from Chiang Mai to Ko Samui
Explore direct flight options from Chiang Mai to Ko Samui based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 October 2026.

Last-minute flights from Chiang Mai to Ko Samui
Discover last-minute flight deals from Chiang Mai to Ko Samui. Data last updated 10 October 2026 and is based on user searches.

One-way flights from Chiang Mai to Ko Samui
Search for one-way flight options from Chiang Mai to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.

Chiang Mai to Ko Samui flights typically cost between £234 and £300 in November.
The cheapest return price found within the last 5 days was £159 on Multiple Airlines (12 Nov–16 Nov).